Question

I have created a button in my Android application & I tried to set onclick listner to run onClick method like follows

...
Button btn_ok;
    btn_ok = (Button)findViewById(R.id.button1);
    btn_ok.setOnClickListener(this);


}
public void onClick() {
     EditText uN = (EditText) findViewById(R.id.EditText04);
     uN.setText("Clicked!");
    }

But Eclipse shows an error & says that “setOnClickListener” need to Cast Argument. After casting it is like this

btn_ok.setOnClickListener((OnClickListener) this);

Then when I’m running the program Emulator says that “Program has stopped unexpectedly”…
How can I solve this problem ?

Answer 1

Make sure that your class implements View.OnClickListener. You can`t just add onClick method, you must implement interface